Folding knife



FIG. 1 is a front perspective view of the folding knife shown in an open position;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left elevation view thereof;

FIG. 5 is a right elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a front perspective view of the folding knife shown in a closed position;

FIG. 9 is a front elevation view of the folding knife of FIG. 8;

FIG. 10 is a rear elevation view of the folding knife of FIG. 8;

FIG. 11 is a left elevation view of the folding knife of FIG. 8;

FIG. 12 is a right elevation view of the folding knife of FIG. 8;

FIG. 13 is a top plan view of the folding knife of FIG. 8; and,

FIG. 14 is a bottom plan view of the folding knife of FIG. 8.

The broken lines depict portions of the folding knife in which the design is embodied that are not considered part of the claimed design. 

CLAIM The ornamental design for a folding knife, as shown and described. 